Printing device, particularly for tabulating machines controlled by record cards or bands



K. A. KNUTSEN 2,227,143 PARTICULARLY FOR TABULATING MACHINES CONTROLLED BY RECORD CARDS 0R BANDS Dec. 31, 1940,

PRINTING DEVICE,

Filed March 19, 1937 5 Sheets-Sheet l N. :EMW R5 V O T 5 T U N M WM ,T F T 4 U N K a m v. m B B F r" Dec. 31, 1940. K, A. KNUTSEN 2,227,143

PARTICULARLY FOR TABULATING MACHINES CONTROLLED BY RECORD CARDS on BANDS PRINTING DEVICE Filed March 19, 1937 5 Sheets-Sheet 2 W UZW V N A A T U N Ka B Dec. 31, A. K S N PRINTING DEVICE, PARTICULARLY FOR TABULATING MACHINES CONTROLLED BY RECORD CARDS OR BANDS Filed March 19, 1937 5 Sheets-Sheet 3 IRVESIEI'I'OR: KNUTA KNUTSEN BYMM,%9%/

ATTORNEKS D 31 ggg K. A. KNUTSEN %273143 ING DEVICE, PARTICULARLY FOR TABULATING MACH CONTROLLED BY RECORD CARDS OR BANDS Filed March 19, 1937 5 Sheets-Sheet 4 Fig. 10 4 INVENTOR KNUTAKNUTSE/N ATTORNEYS Dec. 31, 1940. K. A. KNUTSEN 2227,143

PRINTING DEVICE, PARTICULARLY FOR TABULATING MACHINES CONTROLLED BY RECORD CARDS OR BANDS Filed March 19, 1937 5 Sheets-Sheet 5 INVENTOR= KNUTAKNURSEN AT TURN 5V5 Patented Dec. 31, 1940 PRINTING DEVICE, PARTICULARLY FOR TABULATING MACHINES CONTROLLED BY RECORD CARDS OR BANDS Knut Andreas Knutsen, Paris, France Application March 19, 1937, Serial No. 131,848

9 Claims. (Cl. 101-93) The present invention relates to a printing device particularly adapted to be used in combination with record card controlled tabulating machines.

An object of the invention is to combine the selecting means of the alphabetical printing device shown in my prior patent application, Patent Number 2,046,465, with a printing device comprising a type-carrier.

Said type-carrier comprises a number of circumferential columns in which letters or letters and ciphers are spaced on the circumference arranged in groups. When the printing device is connected to a card controlled tabulating machine, a record card controls two distinct operations of the printing device. Firstly the time that shall elapse or the angular displacement of the type-carrier during said time, from the moment when the printing operating means have been coupled with the driving means, until the hammer shall hit the paper, said time being determined by the positioning of a selecting organ, secondly the moment when the printing operating means shall be coupled with the driving means.

Another object of the invention is to provide means whereby in a printing device comprising a type-carrier with letters and ciphers arranged in groups, spaced along the circumference thereof, complete selection and printing of a type may be executed within one single revolution of the typecarrier.

Another object of the invention is to provide means whereby in a printing device comprising a type-carrier with letters and ciphers arranged in groups spaced on the circumference thereof, the selection of the group to which the type to be printed belongs, and the selection and printing of a type'within the selected group, may be controlled from a record card by means of one single magnet.

Another object of the invention is to provide means whereby in a printing device connected with a record card controlled tabulating machine, comprising a type-carrier with letters and. ciphers arranged in groups and spaced on the circumference thereof, the type to be printed within each group is selected by means of a selector organ (pawl 53) and a rack which moves in relation to each other, or in timed relation to the movement of the types on the type-carrier past the printing position, whereby only one single tooth of the rack passes the selector organ for each group of types on the type-drum that passes the printing position.

A machine embodying the present invention will now be described, by way of example only, with reference to the accompanying drawings in which:

Fig. 1 is a vertical section through the machine, showing the type selection means and the print- 5 ing mechanism.

Fig. 2 is a side elevation of the gear drive between the main shaft of the machine and different cam shafts, and an alternative form of execution of the gear drive between the main shaft of 10 the machine and the shaft of the type-carrier.

Fig. 3 is a front view of Fig. 2.

Fig. 4 shows the normal gear drive between the main shaft of the machine and the shaft of the type-carrier. 15

Fig. 5 is a schematical plan of the tabulating machine connected with the printing device.

Fig. 6 is a vertical section through the machine showing the position of the diiferent pants during the selection of a type belonging to group 9. FlFigz. 7 shows a detail of the gear drive shown Fig. 8 shows the position of the parts acting on the type-hammer at the moment when this latter begins to be moved against the paper.

Fig. 9 is a vertical section through the machine showing the position of the different parts at the moment when the type Z belonging to group 9 is printed.

Fig. 10 is a schematical sec-tion of the card feeding device showing the card reading device and the diagram of the circuits connecting this device to the printing mechanism.

Fig. 11 is. a vertical section showing the different parts in position at the moment when the type group 9 corresponding to the perforation 9 is selected.

Fig. 12 shows a record card with the code of perforations.

Fig. 13 is a vertical section of the type-carrier according to an alternative form of execution.

Fig. 15 is a front view of Fig. 14.

Fig. 16 is a horizontal section through the shaft of the type-carrier Fig. 14.

Fig. 17 shows the wiring diagram for printing the amounts contained on the totalizer wheels.

Fig. 18 is a cross section on line 11-13, Fig. 17.

The drawings show the printing device combined with a tabulating machine controlled by perforated cards.

In Fig. 1, the shaft 1 is the main shaft of the printing device. On this shaft is fixed a toothedwheel 2, which is in mesh with the intermediate toothed-wheel 3 turning on the pivot 4 fixed to the frame. The wheel 3 is in mesh with the toothed-wheellfixedtotheshaftlofthetypecarrier I. For each revolution of the shaft I, the shaft land the type-carrier perform one revolution.

In Fig. 5 is shown in a schematic way the con-- nection of the printing device to a tabulating machine. The main shaft I of the printing device P is common with the main shaft of the totalizers T. By a gear drive 8, 9, the shaft I is rotated constantly by a motor M. The shaft I is further provided with a clutch C, controlled by a ma net 19. Normally the clutch connects the shaft l with the shaft ll of the card feeding device F (shown on Fig.

To the shaft ll (Fig. 10) is fixed a toothedwheel l2 in mesh with an intermediate toothedwheel 13 turning on the stationary pin 14. The wheel 13 is in mesh with a toothed-wheel l5 fixed to the shaft I 6 on which is fixed.the cam l1. The card picker lever i8 is pivoted on the pivot 29 fixed to the frame, and is pushed against the cam i1 by the spring i9.' For every revolution of the shaft I, the card picker lever 18 will introduce one single card of the pile 21, in well known manner between the first pair of feeding rollers 22-23. A gear train 3|, 32 connects the feeding rollers with wheel 13 in such a manner that the card will move at a determined speed in synchronism with the rotation of the type-drum. The card passes a first card reading device 24, another pair of feeding rollers 25, 26, a second card reading device 21, a third pair of feeding rollers 28, 29, and comes to rest in the receptacle 39. A cam 33 comprising a disc with l2 toothed-formed cams, closes a contact 39, every time a place of perforation passes under the card reading device 21, and cuts off the circuit in the interval between two places of perforations, and in the interval between the cards. A "card contact 31 cuts off said circuit in known manner when no card passes under the cardreading device.

Every time a perforation in a card passes imder the card-reading device 21, and this, which in the present case consists of a brush has made contact through the perforation, the cam 39 closes the circuit which energizes a magnet 39. The cam 39 will cut oif the circuit again, before the perforation has left the brush, and magnet 36 will be demagnetized, Figs. 10 and 1. When a letter is to be indicated by the perforations of a card, generally a combination of .two perforations in one same column of the card is utilized. These two perforations when passing the reading device of the column will each close a circuit in order to effect the printing of a letter. In the present application is utilized a system of perforation as shown on Fig. 12. The letter B for instance is represented by the two perforations 1 and 9. These two perforations are both read by the same reading device 21, causing at two different times the energizing of the magnet 38 during the passage of a card. Thefirst time, the magnet effects the selection of the group to which the type to be printed belongs,

the second time, it effects the selection of the type to be printed within each group. If only ciphers are to be printed, the group selecting means may be omitted or neutralized and the magnet will, when energized, effect the printing of the cipher corresponding to the perforation that has been read.

For every column of the card, there is a reading device 21, a column of types spaced on the circumference of the type-drum, a typehammer,

a magnet. and separate typehammer operating 11188118.

The main shaft I, Fig. 1, is integral with a' cylinder forming a common driving ratchet 5| for the printing operating means for all the circumferential columns of the types on the typecarrier. If a line of 190 letters should be printed on the paper, the type-carrier should comprise 100 circumferential columns, each comprising 26 letters and 10 ciphers, spaced on the circumference of the type-carrier. To each of said typecolumn corresponds a typehammer 52 operated by corresponding selecting means from the common driving ratchet 5|. The driving ratchet is, on its circumference, provided with teeth, one tooth for each perforation in a column of a card, which corresponds to each fourth type on the circumference of the type-carrier.

Whenever a perforation in a card is passing the card reading device 21, a tooth of the ratchet 5| is passing the pawl 53 of the printing operating means, and a letter of a determined group of types is passing the printing position. The type selecting means corresponding to one single column of the card will now be described.

The pawl 53 pivots on the pivot 54 fixed to the sector 55 which is provided with four steps 9, 8,

1, 6, and which is pivoted on the stationary spindle 69. The sector 55 is held in position against a stationary bar 6i pulled by the spring 62 fixed at the other end to the left extremity of another sector 63. Said sector 63 is pivoted on a stationary spindle 64 and forms with its inferior extremity a rack provided with 4 teeth: 9, 8, 1, 6. To the sector 63 is fixed a pin 65 on which may turn a roller 66, and another pin 61 on which is pivotally connected a link 68. The spring 62 pulls the sector 63 with the roller 66 against a cam-shaped shaft 69. The link "is at its other end pivotally connected to the pushing lever 19 by the pin 1|. 'To its upper extremity is fixed a spring 12 which at its other end is fixed to a plate 13 fixed to the frame. The spring 12 pulls the link 68 against the stationary spindle 14. To the pushing lever 19 is fixed a spring fixed at its other end to the plate 16 fixed to the frame. The spring 15 keeps the pushing lever 19 pulled against the stationary spindle 82. The pushing lever 19 is further provided with a tooth 11 adapted to engage with the lower extremity 18 of a typehammer 52 which may swing on a stationary spindle 19. The typehammer is kept in position by the spring 89 against the stationary bar 8| fixed to the frame. The spring 89 is at its other end fixed to a plate 43 fixed to the frame. The pushing lever 19 is provided with an inclined edge 83 adapted to engage with the stationary spindle 82 when the pushing lever is moved to the right, in such a way that the tooth 11 will be disengaged from the extremity 18 of the type-hammer 52. The left extremity 84 of the pushing lever 19 is shaped to engage with one of the steps 6 to 9 of the sector55. The lever 85 pivots about a stationary spindle 86 and is provided with a nose 81 and a pin 88 carrying a roller 89. The lower extremity 99 of the lever 85 is engaged with the nose 9| of a crank lever 92 which pivots on the stationary spindle 93. The lever 85 is further provided with a spring 94 fixed to its other end to the bar 95 fixed to the frame. The crank lever 92 is provided with a second nose 96 which engages with the extremity 91 of the lever 98 pivoting on a stationary spindle 99. The lever 92 is further provided with a spring I99 fixed at the other end to the plate IOI fixed to the frame.

The link I02 is pivotally connected to the lever 92 by the pin I03, and at its other end, by the pin I04 to the armature I05 of the magnet 38 which is fixed to the plate I08 fixed to the frame. To the lever 98 is fixed a pin I01 provided with a roller I08. To the left extremity of lever 98 is fixed a spring I09 which at its other end is fixed to the plate IIO fixed to the frame. By the pin III the lever 98 is pivotally connected to a link II2 which at its other end, by the pin H3 is pivotally connected to the pawl 53. The link I I2 is provided with a projection II4 adapted to engage with the stud II5 fixed to the lever II8 which pivots on a stationary spindle II1. spring II 8 fixed at its other end to a plate II9 fixed to the frame. The spring II8 pulls the lever II8 against the stationary spindle I20. The roller I08 on lever 98 is adapted to engage with the cam-shaped shaft I2I. The roller 89 on lever 85 is adapted to engage with the camshaped shaft I21. The bar I28 stretches all over the machine and is adapted to engage with the lever 92 and assures the movement of this lever and the backward movement of the armature I05 when the, magnet 38 has been demagnetised. The bar I28 is at each end of the machine fixed to the levers I29 each pivoting on a pivot I30 fixed to the frame. The levers I29 are on the left extremity provided with the rollers I3I, each pushing against a cam I32. Each lever I29 is provided with a spring I33 fixed at its other end to the frame. The cam I32 is fixed on each side of the machine to the shaft I2I and provided with two projections I34 and I35 which cooperate with the rollers I3I and pivot the levers I29 about the pivots I30 at determined moments of the cycle of the machine. On shafts I2I-I21 and 69 are fixed the toothed-wheels I39, I31, I38 which, by the intermediate gears I39 and I40 are in mesh with each other. The gear I40 is further, by the intermediate toothed-wheel MI in mesh with the toothed-wheel 2 fixed to the main shaft I. The said wheels are so measured that the shafts I2I, I21 and 89 make one revolution when the main shaft I makes one revolution. At a little distance of the circumference of the type-carrier 1 are fixed to the frame the guide-plates I50 and I5I which guide the paper I52 from the paper feeding rollers I53-I54 until the paper reaches the printing position. After the paper has passed the printing position, it is guided by the guiding plates I55 and I55. Between the paper and the type in printing position is placed the ink-ribbon I51.

It will now be described how the perforations in a column of a card control the selection of the type to be printed, and the printing of this type on the paper. The card passes the reading device 21 in such a way that the first place of perforation of the card that passes under the reading device is the perforation 9 (Fig. 12). At this moment, the driving ratchet 5I will take the position indicated on Fig. 11. If there is a perforation at this place of the card, a circuit will be established from the battery 34, cam contact 39, card contact 31, contact plate 35, perforation of the card, brush 21, magnet 38 and back to the battery. The magnet 38 will be ener gized, whereby the armature I 05 will swing the lever 92 in clockwise direction in such a manner that it releases the lever 85, which, by the spring 94 will be swung so that the tooth 81 engages with the tooth 9 of the sector 53. The sector 53 The lever H8 is further provided with a takes the position shown on Fig. 11, because of the timed relation of the cam shaped shaft 89 to the shaft I8 of the feeding device. The shaft I2I is further in such timed relation to shaft 89, that the lever 98 is blocked by the cam I25 in the position shown Fig. 11. the sector 83 will maintain the pushing lever in the position shown Fig. 11, in which the extremity 84 will be engaged with the step 9 of the sector 55 when this sector, later in the cycle will be swung in clockwise direction. The card moves further under the card reading device 2?, and the other places of perforations 8, 1, 6 will pass under the brush. During the time when the places of perforations 9, 8, 1 pass under the brush 21, the roller I08 is located on the cam I25, so that the lever 98 is blocked, and it is only when the place perforation 6 arrives under the brush 21 that the shaft I2I has rotated sufficiently to permit the roller I08 to drop from the cam 23 as shown on Fig. 1, if there is a perforation on the place 8 on the card. Supposing this is the case, the magnet 38 will be energized a second time, and the lever 92 will again be swung in clockwise direction releasing now the lever 98. The spring I32 will swing this lever in counterclockwise direction, whereby the pawl 53 will be engaged with the tooth 5 of the driving ratchet, as shown Fig. 6. By this engagement, the pawl 53 through the movement of the ratchet will be forced to move to the right, urging the sector 55 to turn in clockwise direction about the spindle 60 until the step 9 of the sector 55 hits the extremity 84 of the pushing lever 10 as shown on Fig. 8. The ratchet continues to turn, and the pushing lever 10 will be pushed to the right out of its initial position, until the pawl 53 will be disengaged from the driving ratchet as later explained, and as shown on Fig. 9. During the movement of the pushing lever 10 to the right, the tooth I1 engages the lower extremity 18 of the typehammer 52, so that the latter will be swung violently in counter-clockwise direction and hit the paper, whereby the type now in printing position will be printed--Figs. 8 and 9. At this moment, the pushing lever 10 will be no longer in engagement with the typehammer,'because the inclined edge 83 being pushed .against the stationary spindle 82 will force the right extremity of the pushing lever 10 to move "downwards, whereby the tooth 11 moves out of engagement with the extremity 18 of the typehammer. At this moment, also the pawl 53 will be disengaged from the driving ratchet by means of a lever II6--Fig. 9. The link H2 is moved to the right with the pawl 53 and engages with its upper part the stud II5 which is fixed to the lever H8. The lever H8 will therefore turn in clockwise direction about the spindle II1, whereby the stud I I5 will be engaged with the projection H4 and force the lever II2 downwards as indicated Fig. 9. When the pawl 53 thus is disengaged from the driving ratchet, the lever II2 has been forced sufiiciently downwards, so that the nose 91 of the lever 98 will be engaged with the nose 96 of the lever 92. The lever 98 will thus be blocked in its initial position by the lever 92, and the pawl 53 cannot engage with another tooth of the driving ratchet 5|, when, after the disengagement, the pawl 53 is swung to the left by the spring II8.

The printing of the type T indicated by the perforations 9 and 8 in the column has thus been effected. It will be now supposed that the column of the card contains the perforations 8 and 8 The blocking of indicating the letter R.". As previously described, the shaft 58 rotates in synchronism with the passing of the card in front of the card reading device. The Fig. 11 shows the position of sector 63 when the perforation 8 passes the reading device 21. When the perforation 8 passes the reading device, the shaft 88 will have turned a number of degrees corresponding to the advance of the card in the direction'of the arrow, the roller 86 will have moved a corresponding distance towards the center of the shaft 68, and the sector 83, pulled by the spring 62 will have such a position in this moment that, when the magnet 38 willbe energizedby the circuit established through the perforation 8, the lever 85 with its nose 8! will engage the second tooth indicated by 8 on the sector 53 arresting this latter and the pushing lever in the corresponding position. Said position is such that, when the perforation 5 as previously described establishes a second circuit and the pawl 53 engages the tooth 6 of the ratchet 5|, it will be the step 8 and not the step 8 on the sector 55 that will engage with the extremity. of the pushing lever 10. The sector will swing less before it strikes the pushing lever, and the typehammer will be swung at an earlier moment in the cycle than previously described. A movement of. one step of the sector 55 corresponds to an angular movement of the ratchet l5! equal to the fourth of the angle between two adjacent teeth of the ratchet. Because every ratchet tooth corresponds to 4 types on the circumference of the type-carrier, a movement of one step of the sector 55 corresponds to a movement of the typecarrier equal to the distance between two adjacent types measured on the circumference of the typecarrier. Thus the type lever will now hit the paper when the type adjacent and foregoing to the type Z passes the printing position. This is the type "R" that thus-will be printed.

In the same manner the perforations I and 8 in one column of the card will print'the type foregoing to the typeR, that is the typeH. The perforation 1 will-establish the circuit for the magnet 38, at the moment when the nose 81 may engage the tooth] on the sector 53. The pushing lever will bearrested in such a position that the extremity 84 will engage with the step 1 of the sector 55 when this is swung by the ratchet; If there is no selection perforation, but only the perforation 6 in the column, this perforation will establish; the circuit for the magnet 38, and the pawl 53 will engage with the tooth 6 onthe ratchet exactly as previously described. The lever 85 will be released in the same mcmentas the pawl 53. The roller 56 is, in this moment, on the concentric part of the circumference of the shaft 68, and the pushing lever has taken the position shown Fig. 11. In this position the pushing lever will at once engage with the step 6 on the sector 55 when this is moved by the pawl 53 and the ratchet 5!, as shown in Fig. 1. The type foregoing to the type H will be printed, this is the type 5.

When the pawl 53 thus engages the tooth 8 on the ratchet 5i one of four different types Z, R, H, 6 may be printed. The respective position of the pushing lever 18 determines which of these types shall be printed, the actual position of the lever varying and being controlled in accordance with the presence on the card of either one'of the perforations 8, 8, or I, or the absence thereof respectively. If there is a single perforation 5 in the column of the card, the ratchet will further have advanced a distance equal to the distance between two teeth on the circumference of the ratchet, that is the pawl 58 will now engage with the tooth 5. Accordingly the typecarrier has turned a distance corresponding to 4 types on the circumference thereof, and will, as also type 5, be in printing position when the hammer strikes the paper. According to the presence of a selection perforation 8, 8, I, or the absence of such perforation, the perforation 5 will effect the printing of the types Y. Q. 601' 5 respectively. A perforation l in the same manner will effect the printing x, P, F or 4 and so on. The perforation II will effect the printing of the types. 5, J, A or of a sign. The types 8. 8 and I may be printed when indicated in the column by the two perforations 8 and I2, 8 and I2 or I and I2. The ciphers 8, 8 and I may also be indicated by one single perforation in the column as shown Fig. 12. To effect the printing in this case, a-device may be employed which automatically energizes the magnet 38 when the tooth i2 on the ratchet 5| passes the pawl 58, and the lever 85 previously has been released by one of the perforations 8, 8 or I. For this purpose, the lever 85 is provided with a projection I which is engaged with one of,the blades of the contact iii in such a manner that the contact is open when the lever is in the position shown Fig. l, but closed when the lever is released by the magnet 38 as shown in Fig. 9. Another contact I82, Fig. 10 is closed by a cam I53 fixed on the shaft l, every time the tooth i2 of the ratchet passes the pawl 53. If a perforation 8 ina column of a. card has energized the magnet 38 and released the lever 85 so that the contact Iii is closed and said perforation 8 is not followed by another perforation in the same column, when'the tooth l2 of the ratchet passes the pawl 53 and the cam I53 closes the contact I82, the following circuit is established Fig. 10: battery 38, contact 38, contact 31, contact Iii, contact I62, magnet 38 and back to the battery. The magnet 38 will be energized, the lever 88 released, the pawl 53 will mesh with the too th l2 on the ratchet, and the cipher 8 corresponding to the perforation 8 will be printed, just as if the column had contained the two perforations 8 and I2. Thus when the pawl 53 meshes with the tooth i2 on the ratchet, one of the types 8, 8, or'! will be printed, depending on the position of the sector 63.

Instead of the contact iii, a mechanical device may evidently be controlled by the lever 85 in such a way that, when the lever 85 has previously been released, a cam operated means 42 actuates the armature I85 and releases the lever 88.

Fig. 1 shows the position of the different levers at the moment when a perforation 8 is going to make contact with the brush 21, and no foregoing perforation in the same card has actuated the selection 'means. When the magnet now is energized, the pawl 53 will mesh with the tooth 6 of the ratchet, and the cipher 6 will be printed.

It is supposed in the preceding description 88 that the shaft 8 is integral with the type-carrier I.

The device just described will work in the same manner if the type-carrier comprises individual typewheels for each circumferential column of the drum, each wheel being fixed in such a way to the shaft 8 that when the hammer strikes the paper, the wheel may be arrested a short moment, while the shaft continues to turn, as shown Fig. 13. When the typehammer 52 strikes the paper I52 and pushes it and the ribbon I51 against the typewheel I10, the friction between the hammer and the rotating wheel will tend to stop the wheel. This is possible owing to the spring I1I which at one end is fixed to the typewheel and at the other end to a pin I12 integral with the shaft Ii. Normally the spring "I keeps the wheel in a determined position, by pulling the wheel with its edge I13 against the pin I12. When the hammer strikes the wheel, the wheel may stop until the hammer springs back, whereafter the spring I1I restores the wheel to its normal position.

Figs. 14, 15 and 16 show another arrangement of the types on the typedrum. Each type I14 is fixed to a spring blade I15 which is fixed to a disc I16 common for a circumferential column rigidly fixed to the shaft 6. Between each circumferential column of types is mounted vertical to the shaft 8 and rigidly fixed to the disc I18, a plate I11 on which is riveted a series of fiat pins I18, one pin I18 for each type. The spring blade I15 is fixed in such a way to the disc I16, that the spring blade pushes against the pin I18. When now the hammer strikes the type I14, the spring blade 115 permits the type I14 to remain immobilized a little moment, while the disc I16 and the plate I11 continue to turn with the shaft 6. When the hammer springs back, the spring blade I15 will again push against the pin I18 and bring back the type to its normal position relatively to the plate I11.

In the preceding description, it is supposed that the type-carrier is rotated constantly in synchronism with the shaft I and in synchronism with the passage of the cards in front of the card reading device. The cards generally succeed each other in a certain distance, as shown Fig. 10 and the interval between the cards corresponds to a part of the space I80, Figs. 1 and 4 of the circumference of the type-carrier where no types will be placed. Another part of this space corresponds to the part of the cycle in which the group is being selected. When this space on the typecarrier passes the printing position, no types can be printed, and the movement of the drum is lost. It is possible to avoid this lost movement, when the gear drive between the shaft I and 6 instead of being realised as previously described and shown Figs. 1 and 4, is realised as shown in Figs. 2 and 3. Instead of wheel 2, another wheel I8I is fixed to the shaft I. This wheel I8I has a number of teeth out off, the number of teeth remaining being equal to the number of teeth of the wheels I84 and I85. The wheel I85 is fixed to the type-carrier 1 which has a smaller diameter than shown on Figs. 1 and 4, and the types are spaced all round the circumference. To the wheel I8I is fixed a cam I82 which engages with a hollow-cam I83 fixed to the wheel I84. The wheel I8I is turning constantly with the shaft I, but the type-carrier, owing to the teeth out off the wheel I8I and to the cams I'83-I82, will be arrested when a type I86, Fig. 4, corresponding to the last perforation of a card has been printed, and until the following card has advanced so far that the perforation corresponding to the type I 81, Fig. 4 is under the reading device. The shaft I and the shaft of the card reading device will thus rotate continuously while the type-carrier is stopped in the interval between two cards, and during the time when the group selection is executed.

The printing device described may also print the numbers indicated on a totalizer. This may be done automatically, whereby the stopping of the card feeding device and the set in action of whereby the printing operation is set in action manually.

The totalizers may be of any known construc- I tion. In the Fig. 17 is shown a known totalizer. The main shaft I of the printing device forms the main shaft I of the totalizer T, Figs. 5 and 1'7. On this shaft is fixed a toothed-wheel 200 with 9 teeth in such a position that when the perforation 9 of a card is in front of the reading brush 21, Fig. 10, the wheel 200 takes the position shown Fig. 17 relatively to the wheel 20I. The perforation establishes the following circuit- Fig. Battery 34, contact 39, card contact 31, contact plate 35, perforation of the card, brush 21, magnet 203 and back to the battery. The magnet 203 will therefore be energized in timed relation to the value of the perforation, and inknown manner actuatethe totalizer in such a way that the totalizer wheel 204, Fig. 17 is turned a number of teeth corresponding to the value of the perforation.

When all the cards have passed the card reading device the number indicated on the wheel should be printed. In mesh with each totalizer wheel 204 is a wheel 205 which further meshes with a wheel 206 loosely mounted on a station ary spindle 201. To each wheel 208 is fixed an arm 208 of insulating material, provided with two contacts 209 and 2I0, electrically connected with each other. Adjacent each wheel is placed a plate 2 of insulating material, provided with a contact ring 2 I 2 and 10 contact plugs 2 I3, numbered from 0 to 9, in such position that the contact 2I0 on the arm 208 always makes contact with the contact ring 2I2, and the contact 209 makes contact with one of the plugs 2 I3 for every position that the totalizer wheel may take. It is understood that when the totalizer wheel indicates 9, the contact 209 makes contact with the plug 9, when the wheel indicates 8, the contact 209 makes contact with the plug 8 and so on. The ring 2I2 is electrically connected to the inferior blade of contact 245. The contact plugs 2l3 are connected to the brushes 2I8 which are in contact with the commutator 2I9. This commutator is fixed on the shaft I and rotates in synchronism with the typedrum 1. It comprises a cylinder of insulating material and has spaced on the circumference spots 220 of conducting material which are in electrical con nection with each other and with the slip ring 22I, which cooperates with the brush 222. The spots 220 are numbered from 9 to 0 and so placed on the insulated cylinder that the spot 9 will make contact with the corresponding brush 2I8 when the type 9 on the typedrum passes the printing operating position. The spot 8 makes contact with the corresponding brush when the type 8 passes the printing operation position, and so on. The brush 222 is connected with the battery. When the shaft I is rotating, the commutator 2I9 will intiate electrical impulses, corresponding to the impulses initiated by the perforations of a card passing the card reading device. The slip ring 223 connects the two brushes 224 and 225 during that part of the cycle in which the types 9 to 0 on the typedrum pass the print ing operating position. The conducting spot 228 connects the two brushes 221 and 228 just an instant before the type 9 passes the printing operating position. The key 229 comprises a vertical position.

rod m of insulating material lodged in the frame 7 to the plate 235 integral with the frame. A bar 235 fixed to the frame limits the movement of the armature. A spring 238 fixed to the rod 230 and at its other end to the plate 239 fixed to the frame, pulls the armature 233 against the bar 236. Another spring 240 fixed to the rod 230 pulls the rod upwards so that the projection 25! of the rod pushes against the frame 23 I. The rod 230 is further provided with a projection 24! so formed that when the key 229 is pushed downwards, the projection 24! will engage underneath the lower blade of contact 242. when the key is released and the rod pulled upwards by the spring 240, the projection 2 will close the contact 242. In shunt with the magnet 234 is a magnet 243 which, when energized, closes the two contacts 244and 245.

When a grand total is to be printed, the key 220 is pushed downwards and released, whereby the contact 242 will be closed. Just before the type 3 on the typedrum passes the printing operating position, the spot 226 on the commutator will connect the two brushes 221 and 228, and establish the following circuit: Battery 34, brush 228, spot 226, brush 221, contact 242, magnet 234, brush 225, slip ring'223, brush 224, and back to the battery. The magnet 234 will be energized and the armature 233 moved against the magnet,

whereby the rod 230 will be moved in the same direction, so that the projection 24! comes out of engagement with the lower blade of the contact 242, and the contact 242 is opened. Simultaneously with the establishing of the circuit which energizes the magnet 234, the following circuit is established: Battery 34, brush 228, spot 226, brush 221, contact 242, magnet 243, brush 225, slip ring 223, brush 224 and back to the battery. The magnet 243 will be energized and the two contacts 244 and 245 will be closed. The contact 244 will maintain the magnet 243 energized until the slip ring 223 cuts off the circuit, when all the types from 9 to on the typedrum have passed the printing operating position, by the following circuit: .Battery 34, contact 244, magnet 243, brush 225, slip ring 223, brush 224, and back to the battery. The contact 245 prepares the establishing of the circuit which will energize the printing magnet, when the type. to be printed passes the printing operatingposition. Said circuit isfinally established by the'commutator 2l9 when the spot 220 corresponding to the cipher indicated on the totalizer wheel, makes contact with one of the brushes 2| 8. Supposing the totalizer wheel indicates 5, the arm 208 will have such a position that the contact 209 makes contact with the number of the contact plugs 2l3. When number 5 of the spots 220 makes contact with the corresponding brush 2l8, the following circuit is established: Battery 34, brush 222, spot number 5, brush 2l8, line 5, contact plug 2I3, number 5, contact 2l0, contact 209, contact ring 2I2, line 250, contact 245, magnet 30 and back to the battery. As already mentioned, the spot 5 makes contact with the-brush when the type 5 on the type-carrier passes the printing operating When the magnet 38 is energized in this moment, the type 5 will be printed in the same manner as described for a perforation 5 on a card.

While I have described what I deem to be practical and efilcient embodiments of my invention, it should be well understood that I do not wish to be limited thereto as there might be changes made in the arrangement, disposition and form of the parts without departing from the principle of my invention as comprehended within the scope of the appended claims.

What I claim is:

I. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type-carrier, a typehammer adapted to strike the paper against the type-carrier, analyzing means for reading the indications on the record card, card feeding means for feeding the cards past theanalyzing means, a record card having one group indication for indicating the group to which a character belongs and one type indication to indicate a determined type within each group, selecting means controlled by the analysis of a group indication on a card and comprising a selecting member, means for positioning said selectmg member in a difierent and determined position in regard of each different group indication read on the card, a toothed driving element, a toothed clutch member adapted to engage said toothed driving element, means including said selecting member and said clutch member for transmitting movement from the driving element to the hammer to strike the type-carrier, and means adapted to move one single tooth on the toothed driving element past a tooth on the toothed clutch member for each possible reading of a type indication or group indication on a card.

2. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type-carrier, a typehammer adapted to strike the paper against the type-carrier, a clutch member, a continuously moving driving element adapted to engage said clutch member, means permitting the driving element to displace the clutch member when the clutch member and the driving element are engaged, means for moving said hammer in relation to the type-carrier when said clutch member is displaced, means for reading two differently located indications on a card in movement during one single revolution of the type carrier means for feeding one card past said reading means for every revolution of the typecarrier, means responsive to the reading of said two differently located indications on a card for controlling the starting time of the simultaneous movement of the clutch member and the typehammer to effect the printing of the selected type during the same revolution of the type carrier during which said card was moved past the reading means.

3. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type carrier, a hammer adjacent said type-carrier and adapted to strike the paper against the type-carrier to effect printing, analyzing means for reading the indications on the card, card feeding means for feeding the card past the analyzing means, a driving element, a clutch member adapted to engage the driving element, selecting means controlled by the analysis of an indication in the card and comprising a selecting member, means for positioning said selecting member in one of a predetermined number of positions, each position corresponding to the analysis of an indication in the card, and means associated with said selecting member and adapted to control the lapse of time from the time the clutch member has been engaged with the driving element until the hammer hits the typecarrier comprising means for imparting the movement of the clutch member when said clutch member is engaged with said element to said selecting member, and means for striking the hammer against the type-carrier during said movement of said selecting member,

4. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type-carrier, a typehammer adapted to strike the paper against the type-carrier, analyzing means for reading the indications on a record card, selecting means controlled by said analyzing means and operated upon the analysis reading of an indication in a card means for continuously feeding the card past said analyzing means during said analysis reading of the card, further selecting means operated upon an analysis of a. second indication in the card when the card is in a position difi'erent from the position in which it was when said first indication was analyzed, a toothed driving element, said further selecting means comprising a toothed clutch member adapted to be engaged with said driving element, means for moving the hammer against the type-carrier when said clutch member is moved by said driving element and means for moving one single tooth of the toothed driving element past one tooth of the toothed clutch member for each analysis of an indication in a card.

5. In an alphabetical printing device for record card controlled machines, a type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said typecarrier, a typehammer adapted to strike the paper against the type-carrier, a toothed driving element, a card analyzing device for reading the indications thereon, a magnet controlled by said card analyzing device, selecting means controlled by said magnet adapted to select a predetermined group of types, a second selecting means controlled by the same magnet adapted to select the type to be printed within the group selected by said first selecting means, said second selecting means comprising a toothed clutch member adapted to be engaged with said driving element and to move the hammer against the type-carrier when said clutch member is engaged with said driving element, and means for continuously rotating the type-carrier during the operation of said first and second selecting means.

6. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged'in groups, a paper adjacent said type-carrier, a typehammer adapted to strike the paper against the type-carrier, analyzing means for reading the indications on the record cards, card feeding means for continuously feeding the cards past the analyzing means, a record card having one group indication for indicating the group to which a character belongs and one type indication to indicate a determined type within each group, driving means, a clutch member adapted to be engaged with the driving means and when engaged therewith to be moved by said driving means, a selecting member adapted to be positioned in one of a determined number of positions, each position corresponding to a group indication on the card, means for controlling by a group indication on the card the positioning of said selecting member and by a type indication on the same card the engagement of said clutch member with 'said driving means, at a moment determined only by said second type-indication, and means for transmitting the movement of the clutch member to the hammer so as to cause the hammer to strike the type-carrier. said means controlling in cooperation with said selecting member the lapse of time from the moment the clutch member has been engaged with the driving means until the hammer strikes the type-carrier.

7. In an alphabetical printing device for record card controlled machines, a rota-ting type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type-carrier, a typehammer adapted to strike the paper against the type-carrier, card analyzing means for reading the indications on the card, card feeding means for continuously feeding a card past the analyzing means, a driving element, a clutch member adapted to engage said driving element and to be moved by said driving element when being so engaged, a selecting member adapted to be positioned in a determined number of positions, each position corresponding to a determined indication on the card and further adapted to transmit the movement of the clutch member to the hammer whereby said movement of the hammer will be difierently timed for each position of the selecting member, and means for controlling from one single card reading station, the starting time of simultaneous movement of said hammer and said clutch member.

8. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type-carrier, a typehammer adapted to strike the paper against the type-carrier, card analyzing means for reading the indications on the card, card feeding means for continuously feeding a card past the analyzing means, a driving element, a clutch member adapted to engage said driving element and to be moved by said driving element when being so engaged, a selecting member adapted to be positioned in a determined number of positions, each position corresponding to a determined indication on the card and further adapted to transmit the movement of the clutch member to the hammer whereby said movement of the hammer will be differently timed for each position of the selecting member, and means for controlling by said analyzing means the starting time of simultaneous movement of said hammer and said clutch memher.

9. In an alphabetical printing device for record card controlled machines, a rotating type-carrier with types spaced about the circumference thereof and arranged in groups, a paper adjacent said type-carrier, a type-hammer adapted to strike the paper against the type-carrier, analyzing means for reading the indications on the record cards, card feeding means for continuously feeding the cards past the analyzing means, a record card having one group indication for indicating the group to which a character belongs and one type indication to indicate a determined type within each group, a toothed driving element moved in synchronism with the movement of the card past said analyzing means, a clutch member adapted to engage said driving element and to transmit the movement 01' the driving element to the hammer during such engagement, whereby the hammer will strike the type-carrier,

a number of teeth on said driving element, such that one single tooth on said driving element passes the clutch member for each type indicamovement of said clutch member and said ham- 5 mer by said single magnet.

KNUT A. KNUTSEN. 

